| article html file updated | 7 February 2020 19:54 CET | Update | https://www.mdpi.com/2076-0760/5/4/79 |
| article html file updated | 4 May 2019 18:39 CEST | Update | - |
| article html file updated | 19 December 2016 13:32 CET | Original file | - |
| article xml uploaded. | 19 December 2016 13:31 CET | Original file | https://www.mdpi.com/2076-0760/5/4/79/xml |
| article pdf uploaded. | 19 December 2016 13:31 CET | Updated version of record | https://www.mdpi.com/2076-0760/5/4/79/pdf |
| article pdf uploaded. | 18 December 2016 09:52 CET | Version of Record | https://www.mdpi.com/2076-0760/5/4/79/pdf-vor |
